#define _CRT_SECURE_NO_WARNINGS  1
#include<stdio.h>
int main()
{
	int i, j;
	i = 13;
	j = 2;
	j += i;
	do
	{
		i--;
		printf("%d\n", i);
		printf("%d\n", j);
	} while (i>= 0);
	return 0;
}